Machine for shaping shoe uppers



July 3, v1945. R. E. DuPLEssls 2,379,425

MACHINE FOR sHAPING snor: UPPERS July 3, 1945- R. E. DuLEssls 2,379,425

lMACHINE FOR SHAPIG- SHOE UPPERS Filed June 20,-1942 1o sheets-sheet 4 July 3,* 1945'.l

MACHINE FOR SHAPING SHOE UPPERS Filed June 2o, 1942 io sheets-sheet e Jul-'31945- `R'. EfbuPLEs-sls ,A 2,375,425.' E

MACHINE FOR sHPING -sHoE UPPERS Filed June 2o, 1942 1o sheets-sheet '7 l 24a a A U 376' afs m gf@ 3 92 244 J @y Figli).

July 3, 1945. 1 R. E. DuPLEssls MACHINE FOR SHAPIG' SHOE UPPERS Filed Jun 2o, 1942 ,1o sheets-sheet 8 v July 3, 1945.-

R. E. DUPLEsSls MACHINE FOR SHAPING SHOE UPPERS Filed June 20, 1942 Tig. 14. 200

lO Sheets-Sheet 9 j ci! 2m 222- gm 2/26 'e fs Tigl.

mffq 2/8 maso V 22 .Hifi-gjJ I 226 5,10 226 JW L V l L' i 20G I u Tlglfl.

/NV m@ @w 25@ July 3, 1945.

R. E. DUPLEs-sls 2,379,425 MACHINE FOR SHAPING SHOE UPPERS Filed June 2o, 1942 1o sheets-sheet 1o v vPatented July 3, 1945 n MACHINE :FOR SHAPINGi-SHG ILP-PERS Ren E. Duplessis, Beverly, Mass., assigner "to yUnited Shoe Machinery Corporation, Fleming- `ton, J., :a corporation o'f'New Jersey .Application .June `zo, 1942, sentirvi. .4.4'1,r91y

(cria-457i) upper xby.the@actuation-of said :pressure fluid op- A45 Claims.

This invention relates to machines for shaping shoe uppers .or shoe parts such, for example, :as separately molded back parts, and is herein illustrated :as .embodied in a machine `for shaping vthe rear parts of stitchdown uppers having outturned flanges. In certain respects, however, 'the invention .is not limited to machines for shaping uppers Ahaving outturned lflanges `but .is applicable also ,to machines for forming 4inturned flanges lin shoe uppers :or upper parts. In .certain aspects thereoi, the nventiontrelates to combinations and mechanisms applicable `to .machines lother than shoezmachnes.

.In the manufacture of stitchdown 4shoes `in which .the rear portion including `a heel lstiffener is flanged outwardly, it is desirable that the rear part of the upper including the heel stifiener and the lining'be molded before Athe upper is .mounted on 1the last in order to provide `a .permanently formedllange and a .sharply defined crease Abetween the flange and the body .portion of the upper. Inmachines heretofore :provided for .this purpose such, for example, as the machine fdisclosed in United States Letters PatentNo. 189.1,

. portion .of the upper sufficiently well defined to provide the best condition for 4subsequent shoemaking operations. l

It is an object :of this .invention to provide a machine which, while .retaining .the .advantages of prior machines, including that. disclosed in the patent above referred to, will .be capable `of applying sufcient pressure to the shoe upper to `attain the desired results.

'With the above object in vie-w, the Apresent invention .in one aspect thereof consists in the combination with 'inner `and outer upper-shaping molds or forms of flange forming means movable heightwise of the upper and pressure fluid actuated means for imparting such heightwise .Inovement to the liange forming means. Further .teatures are to be recognized in the provision of a pressure fluid actuated piston. constructed and arranged for movement 4heightwisi-g of the upper to impart such heightwise movement to a pair of flange formers; in the combination. with said piston of a pressure iiuid actuated member for moving said .flange formers longitudinally of the upper; in the provision .of a carrier on which said flange Yforming members are mounted,said-carrier being arranged for movement 'heightwise of the erated jpiston; and, in :the construction and `arrangement `of said -fparts wherein .said piston .is positioned irrhcightwise Ialinem-ent with ,the `up- Der in order to applyfdnect pressure-torsaid dang-e provided withyieldingmeans rfor `exerting a pressure .heightwise of the upper yon `the flange for-mer carrier,- said yielding means, as herein illustrated., Acomprising arelatively ,light .spring .interposed between the carrier vand lsaid piston.

In the illustrated machine,- as in the machine of the prior patent above freferred to, .the ange. formers mold the Voutturfnedmargin .of the upper against =the 'bottom surfacesy .of the .outer heel forms.- It will be y.understood that nit is important that 4the riange form'ers move downwardly .away from the. outwardly flanged liiriargin of .the upper before .the .ange formers Yor the outer :heel forms commence .their'retracting movement. .In order to .achievethismesulh illustrated `flange forming mechanlsrmin accordancefwitha further feature of .the invention, consists in. the 'combination with the relativelylight spring for.pressing .the flange formers against the bottom margin of the upper .during theflangeturning .operation and the pressure duid .actuated ,piston for .applying :flange molding pressure .to said ilangeformers of a relatively heavyspringior eecting a quick Yretraction of Ysaidpiston before theretraction of .the ange formera or theouter. heel forms commences..

.In :accordance with a .further v,feature of ythe invention, boththe. outer heel. forms .and the flange forming members are operated by pressure fluid actuated means and aseparate pressure fluid actuated meansv .is provided for 'retract-,ing said outerheel form.

In another aspect thereof, theinvention provides means .for actuating the upper-,shaping molds comprising a piston having connections to the opposite side portions of said molds and yielding. means for holding the molds open while they and the molds andthe molds are mounted on aA carrier from which they are, conveniently `removable. fIn accordance 'with a further feature oi the invention, pressureiiuid actuated means is provided for advancing the molds intheir open` and a cylinder in which said members are concentrically mounted. In order that the molds may be advanced rapidly into upper-engaging position and then brought to. bear againstthe upper with relatively heavy molding pressure, the illustrated machine, in accordance with a still further feature of the invention, is provided with e pressure fluid actuated means for advancing the molds underrelatively light pressure to bring them into proximity to the work, pressure fluid actuated means for thereafter advancing the molds under relatively heavy pressure, and pressure uid actuated means for yclosing the vmolds on the work. To achieve this result, the illustrated machine'is provided withea member hav-4 ing a relatively small pressure fluid area for advancing the molds into proximity to the work, Va second member having a relatively large pressureiluid area for furtheradvancing the molds and pressing them against the work,` and a third pressure fluid actuated member for'V closing said molds von the work. Y. i

In forming an outturned flange in a stitchdown upper, it is desirable that a lwell-delined crease be formed at the bend line of said fia-nge. To that end, the illustrated inner form is provided with a recess so constructed as to assist in the formation of a crease line in the upper at the root of the outturnedv flange, said recess providing a space into which the upper materials are forced by the application of pressure to said outturned flange by upward movement ofthe flange formers. The illustrated inner form isprovided with an Vangular recess or groove extending about its work engaging surface along a line adjacent to the bend line of the outturned flangeI ofthe upper and having a contourcomplemental to the shape desired'in the creased portion of the upper.

In order to reduce toa minimum the'extent ofY operating movement of they flange formers, they are so constructed and ,arranged that. in their closed or retracted position they occupy2 a space somewhat wider than `thebase of the inner form,r

thus providing abutments against whichthe upper-engaging molds turn'thembottommargin of the upper outwardly to initiate the flange forming operation. e l

In certain important respects, the present invention is not limited to a machine forlshaping shoe uppers but is applicablerto power operated machines generally. f In one Aaspect thereof,the

invention contemplates the provision inv each.

second pressure fluid actuated .piston for rel tracting said 4first-mentioned` piston, and meansA in each station for controlling the actuation of` said secondv piston in vthe other station. InI the illustrated. machine, the. rst piston above referred to advances the upper-shaping molds while l the second piston actuates mechanism for retracting said molds,.said second piston acting in the cycle next succeeding the application of pressure by the operation of the first piston, and providing a time interval during which pressure is maintained to insure an effective molding operation on the upper.

In an important aspect thereof the invention consists in the combination with the upper shaping molds, the flange formers and the pressure fluid actuated pistons for operating the molds and the flange formers of a selector valve for determining the sequence of operation of said pistons, a pressure fluid actuated motor for operating said selector valve, and another valve for determining the speed of operative movement of said motor. The illustrated selector valve is so constructed and arranged as to cause the heel end shaping operations to occur in the following sequence, namely, first the closing of the molds on the heel end of the upper, then the `movement of the flange formers to bend the bottom margin of the upper outwardly and, finally, the movement of the flange formers heightwise of the upper to mold the outturned ilange.'

Another aspect of the invention relates to combinations applicable to pressure fluid actuated machines generally, and not limited to machines for operating on shoes. In this aspect the invention provides a combination including the piston. rod which, in the illustrated machine, actuates the outer heel molds, said piston rod having a small piston head and a relatively large piston head and operating in a cylinder having a small bore for said small piston head and a large bore for a sleeve which slides on the large piston head. The piston is initially actuated by pressure fluid admitted through a port in the small bore of the cylinder and acting against the small piston head and is finally actuated by pressure fluid admitted through a port in the large bore of the cylinder and acting against the large piston head, the latter bore being initially covered by the sleeve. In the operation of the machine after the initial advancement of the piston rod the sleeve is advanced to actuate Work engaging means and in the course of such advancement uncovers the port in the large bore of the cylinder, admitting pressure fluid which operates against the large piston head to further advance the. piston rod together with a carrier for said work engaging means actuated by movement of said piston rod.

Other features of the invention relate to the provision in a two-station machine of novel mechanism, including a treadle common to both stations, for operating the Valves in each station` to initiate the operation of said station, and automatic means in each station for operating the valves in the opposite station to effect the release of the work.

These and other features of the invention will now be described with reference to the accompanying drawings and pointed out in the appended claims.

In the drawings,

Fig. 1 is a side elevation of a machine embodying the features of the present invention, the base and side Wall being broken away and certain parts shown in section;

Fig. 2 is a perspective View of the rear portion of the machine with the back cover plate removed;

Fig. 3 is a side elevation illustrating parts in the head of the machine, the hydraulic cylinders being shown in central longitudinal section;

Fig. 4 is an 'enlarged view in side elevation iliustratmg .operating mtrumsntcnties in `,the

head of A.the :f-machine, roer-tain .parts `.being shown infsection; y e i. Y i

,'Fig. 5 ;is :a Ygola-n `.view illustrating .a portionof the machine. head, pertain parts [being broken away and other parts shown in asection; A

Eig. 6 .isa-section .on .the line VI-NI. of Fig. A5; Eig. 7 Yis a .plan view `illustratinglthe .flange former .operating A#mechanism j and A'certain .other operating parts;

fFig.-8 is -a perspective iew illustrating particularly the heel .form :and the :flange formers;

Fig. .9.;is a,perspective view illustrating gparts of the hydraulicrsystem and other operating mechanism; l

Fig 1.0 Ian enlarged `detailview of a hydraulic -valve .in central longitudinal section;

.Fig .1.1 .-i-sza .diagrammatic fview of the hydraulicsystem with fthe hydraulic cylinders shown :in central ,longitudinal fsection and fthe `.valve .operating treadle, efor A.convenience -of illustration, separately shown =in-eachestation;= v

Fig. 12 .is..an enlargeddetail viewof rth'e governor valve `in Pcentral longitudinalsection;

Eig. 13 is .asection-.cn .the `line XIII-XIII of Fig. 12, .greatly enlarged;

.,Fig. ..14.isanenlarged.detauyiewff .the rotary valve and :its casing;

.15 isa development of .theinner surface of the casngillustrated .in,1!i g. 14;,

y Figs. ,16 i.to 1.9 inclusiveare. developments of the `outersurface 4of the rotaryvalve bodyshowing rthe position .ofthe valve .body .in .its casing at suecessivestagesin the operation .of .the .Kmachine.;

Iigs. 20, .2l .and .22..are enlargeddetail views illustrating successive positions ,4ofthe, .operating parts onthe w.o1"k;.and`` f `lig. 23 is an enlarged `detail view', .partly in section, .illustrating l,the ,work .engaging portions 'of .the .ange .forming ,.mexihanism.; Reerring toi-Lig. 1, .the illustrated machine is a two-station ,uid pressure .operated niachine having operating partslsimilar .in their construction and mode o'f loperaitionfto the operating parts in the machineillus'trated in my patentv hereinbefore referred to. "in, common with vthe machine illustrated in said patent, each stationof "the present machinejisiprovided with aninner heelfform .3U,.a .pair of outer heel forms `32, and a pair of 'flange Afarmers or wipers 34 constructedand arranged vto moveoutwardly,

and rearwardly to nange the bottom margin of the upper against the outer heel.'forms32 yandto V to the horizontal with its 'heel portion uppermost. Thus, Lit ywillhe understood Athe inner -heel form is Isopositionedon the plate36``that 'it is held in positiononsaidplateby gravity. tThev plate '36 Vis secured between downward extensions ;4'4 (Figs-l) :offan'inclind'rportion 46.01 v'the top Vof the machine zby .a cross-pinl48, the-'forward portion 'of the aplate -36 fre's'tingon the frecessed portion of the iframe :between upwardextensions 50 (Fig. 8)..,v :Referringto Figs; 5 and 6,'-each outer theel "form-.62 is mounted-onse carrier .il `iprovided with .an upwardly extendmg arcuate rtongue kwhich :nts into a'zcorresponding. tgrooveiin athe router .heel forms 32; Emme center mffnurvatnre 5,6 .of'zsai'd arcuate ltongue :is located Ysubstantially iat ithe meeting 'point of the workngagingsurfaces for Lthefforms :32 .and vthus there :isnc appreciable :separation .of Hthe work engaging .surfaces fof the :molds iwhen fthe .molds are opened vslightly .to liree l.them from .the work. Thecarrier F52 :is secured to the `.reduced .for- Ward :portion of .a 'piston'rod fand Ythezvveight of the icarrier Fand the iforms 3.2;is1supportedi by `1 a fcrosslrea'd 2601.(Eig. `4) on -which the .carrier-is slida'bl-y amounted. .F.orwclosingfthe forms A132 on' the heel iportion .of ran. upper 'mounted onf-the inner form aacrossheadz .'(Eig. :5) :at the riorward rextremity lof 'fa thollow piston or sleeve 4 .is connected rby lflinks H610 outwardly' Aextending ears 168. keon :the forms :32. To acilitate fthe-fremoval of the :forms 3.2 from the machine, the ears 58 are :provided with open-ended .slots 10 which receive the v:pivot pins l2 on vthe links 66, thus permitting said links to be readily .disconnected from :the forms. During the operation of the machinethe pins .1.2are retained .in .position within 'the slots .10 by springs .14. y'The forms `32 are .normally :held in their .openposition`-by the 'expansion of a spring 16 'surroundingtthe `piston rod 5.8 `and confined between the rear aportionfof thecarrier v52 :and the baseof a spring .receiving frecess -18 .in ithe Vcentral :portion of -theficrosshead 62, .the expanded lpositionof the :spring .being .determined by the :engagement of a ange 19 'on the rod `58 within .a lcounterbore in :the central portion 4of thecrosshead 62. The sleeve 64 iis fslidably vmounted in a fixed cylinder -8ll and 'its rear 'portion is counterb'ored at :8.2 :to 'receive a-.pistonill on rthe :piston rod 58. A rearward vextension .86.of the pistonrod .58 is mounted-1in a small.cylinderllii tand its end por-` tion is enlarged to provide a vpiston .-90 `.which slides kin fsaid cylinder. The initial advancement 'of :the :outer heelorms '32 from their .position illustrated `in Fig. 5 .is effected by iluid'underpressure introduced into'the rearfportion of the 'small cylinder 288 through a -.pipe 5285'.V It willibe A.understood that 'during such initial ad, vancement the Lventire .outer :heel form assembly comprisinglthe forms 13'2, `the ycarrier 52, lthe pis-f ton rod =58, the sleeve 1164', :and its connections kto theheel iormsadvance asi-aunitwiththeforms 32 in Vtheir :open position, as shown in` Fig. :5.

Djuring vsuch 'initial advancement o'f the heel form assembly, iiuidiis drawn-from a surge tank 94 through a pipe -95 :into the chamber at y'the rearward-extremity of .the cylinder =80, the iiowl of --uidfrom said surge tank. continuing until the .port $l'8 through which such :fluid ows into '-I-his occurs -asv the forms 32 come intof'engagement with the back-line ,portionof `an upper -on thejnner giorni 3D. As the `advancement .of the piston 90 -oloses tlieport 98 corresponding advancement OrthesleeVe 6.4opens'a port 100 I(Figi 1) 'in -the cylind'er180 :admitting fluijdunder'pressure from '.afpipev '1.9.0. Pressurerfluid from said pipe '.I 9|) .acts against :the 'piston 84 and vthe rear edgeiface 1.04 .(Fig. y5) .of the `sleeve 164, thus forcing ethefmolds :32 under Vrelatively heavy pressure against the back-line Yportion `of fthe `upper yand simultaneously Aclosing said forms on opposite sides of 'the :heel #portion of `the lupper gto 'shape theiupper against-,the innerheel'form 30.' Some pressure Sfluid will vinevitably 'leak through the cylinder and, unless .provision is'made-or draining off lthis leakage, it will flow downwardly along 'the sleeve"|i4r and there is danger that so'm'e of this leakage will work downwardly'onto the outer heel forms and soil the exposed surfaces lof shoe uppers. In order to provide for the proper draining 'of such oil leakage, the forward portion of the cylinder bore isprovided with a drain groove |05 (Fig. 5), saidgroove formingl an' ellipse extending downwardly and forwardly from the top of the'cylin'der bore. The forward wall of this groove extends outwardly at a rightv angle tof the cylinder bore in order to wipe the leaking oil from the sleeve 64 during its forward movement and Vcause' vit to drain 'downwardly through the bottom of the cylinder 80 and through suitable drainage ports in the `top of the machine frame;l It will-be understood that the upper-shaping mechanism above'described is substantially identical in the two stations of the illustrated machine.

The flange formers 34 are removably secured to carrier. plates H18 (Figs. 'l'V and 8) which 'are mounted on bedplates 01 and held against upward movement by holddown plates |09 secured to said 'bed plates. The ange formers are 'connected together by a halved jointA H4V and their operative movements are controlled by rolls |08 mounted on'studs'llll and arranged to operate inarcuate Slots lf2 in the plates |06. For mounting the flange formers' on their carrier plates |06, each ange former is provided with .two downwardly extending pins H (Figs. "1 and`2i) the foremost of which is' provided with a groove which receives a lockingv pin ||8 mounted in a longitudinal bore in the carrier plate |06. In order to admit the foremostpinl I6 into its hole in 'the carrier plate, the lockingpin ||8 is provided with a groove which registers with said hole f when the locking pin is pressed rearwardly against the pressure of a Aspring |22V which returns the looking pin to its forward or locking position after the flange former is seated on its.`carrier. The flange forming assembly is mounted on the head |24 (Fig. 4) of a sleeve |26'slidably mounted in the upper portion'of a cylinder |28 secured to the machine frame and moves upwardly with said sleeve during the flange forming operation. For moving the iiange formers` rearwardly and outwardly' to vflange the bottom margin -of the upper outwardly against theouter heel forms 32, the'illustrated 'machine is provided with a pressure iiuidV actuated means comprising a piston rody |30 (Fig. '1) which carries at its rear end a piston |32 slidablymounted in a cylinder |34 and has fixed toits forward end a crosshe`ad/I3B, the opposite ends of which are connected by ball-ended links |38 to the flange former carriers |06. The iian'ge forming assembly is supported for the flange forming operation vabove described a spring |40 (Fig. 4) surrounding a piston? rod |42, and is confined between a shoulder |44 in the sleeve |26 and an annular plate 46 surrounding said piston rod and supported by a relatively heavy spring |48 surrounding said rod and holding said annular plate against a shoulder formed in the cylinder |28. The initial or rest position of the flange vforming assembly heightwise of the upper is determined by the adjustment of a headed screw |50 extending freely through a |bore inthe hea-d |24 and threaded into a tapped hole in the upper end portion of the 'piston rod |42, the head olf said screw being seated in a Acounterbore in the head |24. It; will rbe understood that the screw |50 holds'the flange forming assembly against upwardv movement while permitting sai-d assembly to move downwardlyslightly against the pressure of the spring |40 as may be required'yduring the rearward and outward movement of the flange formers. Preferably, the flange farmers would exert only a light upward pressure against the bottom margin of the upper during such rearward and outward movement, the upward movement of the flange formers to mold the flange against the outer heel forms 32 occurring after the rearward and outward movement of the flange formers has been completed. For moving the flange forming assembly heightwise of the upper for the flange molding operation, the piston rod |42 carries a large piston $52 (Fig. 3) which operates in a counterbore |54 in the expanded lower portion of the cylinder- |28. They piston is actuated by fluid under :pressure introduced into the chamber in the lower portion of the cylinder |28 through a port |56. The pressure thus produced is taken bya cover plate |51 (Figs. 1 and 5) lmounted to swing on pins |59 to permit the removal of the operating parts. The rear portion of the plate is held against upward movement `by a removable pin |6I. In order to prevent the piston from returning to a position where it will contact thelbottom of thel cylinder and eliminate said chamber, a spacer or boss |58 extends Vdownwardly from the ypiston |52 for engagement withl the head '|60 of the cylinder. In order to oloviate any rubbing of the flange formers against the molded iiange asthey return to their rest position, the spring |48 is made sufficiently heavy to insure a quick return of the piston together with the ange forming assembly to its lowermost position For moving the flange fermers forwardly and inwardly to their rest position a spring |62 (Figs. 3 `and* '1) is `mounted in a reduced extension |64 of theycylinder |34 and its forward end is seated in a bore in the piston |32. The outer heel forms 32 are withdrawn to their rest position by the pressure ,fluid actuation of a piston |66 (Fig. 9) in acylinder |68 through avtrain of mechanism hereinafter described. A

For actuating the illustrated machine, van electric motor" |10 (Fig. 1) operates a constant delivery vpressure uild pump |12 (Figs. 1 and 2) which may beta gear pump of any known type and said pump draws pressure fluid from asump |14 4in the base ofthe machine and delivers it to both stations of the illustrated machine. For controlling the uid pressure, a pressure control valve |15 is secured toa pipe |11 communicating directly with the pump |12. While this valve may be of any knowntype, I prefer to employ for this punpose a valve such as that illustrated in Fig. 33 of United vStates Letters Patent 2,047,- 185,` granted July 14, 1936, on an application iiled in thename of Milton H. Ballard et al.

Referringto-Fi-gsZ and 11, lthe pump |12 draws fluid, preferablyoil, from the sump |14 through a supply pipe |16and forces it through feed pipes |18, |80, |82 and |84 to a manifold |85 and through two feed pipes |88 totwo rotary selector valves R (Fig. l1) one in each station of the machine. Upon actuation of the rotary valve in one station,.as hereinafter described, pressure huid from one'oi the pipes |88 is fed in predetermined sequence first'to a pipe |90 which communicates withv the cylinder to operate 1the outer heel forms `32; secondly, through a pipe |92 which communicates with thecylinder |34 in'which operates the piston which imparts outward or wiping movement to the flange formers; and nally, through a pipe 94 which communicates with the ring -to Fig. 11,. the valvesl 248,250and252 in the right-hand station of the` machine areshown in their elevated position withlthez. operating parts shown in'their pressure-applying positions. In this position ofthe sleeve valves, .the upper. valve 248 is arranged to open a pressurefline from the manifold |86. through a pipe i285 to the small end 88 of the cylinder 80,'andalso to open a pressurev line through the pipe 236 to the cylinder 238.Y The middle valve 250m its upper position isarranged to close thepressure line extending downwardly from the manifold and to open the exhaust port-in said valve for the passage of exhaust fluid from the cylinder |68 through a pipe 218-connected to the pipe 244. The lower valve 252--in its upper position prevents the passage of pressure fluid 4into the-lower portion of the pipe 244and also prevents thedischarge of exhaust uid from the cylinder 242 upwardly through the pipe 244 and through the exhaust passage in the middle valve'250 and forces the exhaust fluid from `said cylinder to pass outwardly through a governor valve G. Said governorvalve, now to be described, restricts the flow of exhaust fluid from the cylinder 242 and times the downward movement of the motor 232 and therefore the rotation of the rotary valve R.' Referring now to Figs. 12 and 13 illustrating the construction of the governor valve, said valve comprises acasing 282 'to which the pipes 244 and 246 are connected,

said pipes communicatinglwith a fluid chamber 284 which provides a permanently openl passage between the'two pipes. Said casing isalso pro- 'vided'withan exhaust outlet 286 through which oil passes from' the chamber 284 through an orifice the size fof which may be varied by turning a valve body 288 extending vertically through said chamber and into a bore at the bottom of said chamber. VThe cylindrical surface of .the valve body is provided with Va longitudinal groove`290 which is open to the chamberv 284 and which communicateswith an` eccentric lpassage 292 extending from the chamber 284 totheexhaust outlet 286; lThe valve body 288 may be'turnedby means of a handlever 294 (Fig. 9) to adjust the position of the groove 290 relativelyto .the eccentric passage 292 and thereby to varythe size of the orifice through which fluid passes from the chamber'284 into the exhaust outlet 286,- the adjustment of said valve body being vindicated by the position of a pointer, on the ,handl lever on a scale v 296 on the upper portion of Athel casing 282lv Referring again to Fig. lLthe sleeve valves 248, 250 and 252 at the left side `of the diagram are illustrated in their lower positionsI the operating parts being shownin their inoperative positions. The upper 'valve 248 is now so positioned thatexhau'st iluid from the pipes 285 u and 236 passes through its exhaust chamber and drains through the exhaust outlet 249 into the sump. The middle valve 250 is arranged to permit passage of pressure fluid from the manifold |86`through the pipes 244 and 218 to the cylinder |68 vto actuate the'piston |66 andthrough it to effectthe retraction of the outer heel forms through mechanism presently to be described. "The lower sleeve valve 252 in its lower position connects. the manifold to the 'pipe 246 through which pressure uid passes tothe cylinder 242 andthe lower end` of the motor 232. The governor valven 280, is in this .pressure line but it will beunderstood that the pressure iiuid passes f reely through thegchaniber 284 of the governor valve, tsaid valve in this to engage the` bottomrof-the valve 248.. Refercase merely serving as an elbow connecting the pipes 244 and 246. I

For retracting the outer heel forms, the piston |66 is connected by a link .300 (Fig. 9) to a lever 302, to the opposite end of which is anchored a flexible cable 304 which passes over a pulley 306 and is connected to the carrier 52 on which the outer heel forms are mounted.

In the illustrated two-station machine, the upper in one station remains under molding pressure while a molded uppervis removed from the other station and another upper tobe molded is placed therein and the outer heel forms in said other 4station begin their advancing movement. As said heel forms advance, they act through the cable 304 to rock the lever 302 touretract the piston |66. This lever also operates through mechanism now to be described to impart downward movement to the slide valve assembly in the rst station thereby effecting the release of fluid pressure in said first station and the retraction of the operating parts to their rest positions. It will be understood that two such trains of mechanism are provided in the illustrated two-station machine. Referring to Fig. 9, the lever 302 in the right-hand station, indicated as station B in Fig. 9, and a similar lever 303 in the left-hand station, indicated as station A, are freely mounted upon a cross-shaft 32| extending through both stations of the machine. Extending laterally from the lever 302 is an arm 308 having ahub 309 kwhich is freely mounted on the shaft 32| and lies adjacent to the hub of the lever 303 in station A. Similarly, an arm 3|| extends laterally from the lever 303 and has a hub 3|3 freely mounted on the shaft 32| and positioned adjacent to the lever 302 in station B. .Extending from the hub 309 of the arm 308 are short arms 3 |2 between which there is pivotally mounted an arm or thrust member 3|4, 'the free end of which is seated at the base of a notch 3| 6 in theupwardly extending arm y of abent lever 3|8 freely mounted on a cross-shaft 320 extending through both stations of the machine. Similarly, the hub 3|3 of the arm 3|| has extending therefrom two short arms 3 5 between which there is pivotally mounted an arm orthrust member 3H, the free -end of which is seated Aat the base of a notch in a bent lever.3|9 freely mounted on the shaft 320. The bent lever 3|8 is connected by a link 322 to the upper sleeve valve 248; in station A while the corresponding bent lever 3|9 is connected by a link 323 to the upper sleeve valve in station B. It .will be seen that While the lever 302 is positioned in station B and operates on the outer heel forms in station B, the

arm 308 extending from said lever operates on the thrustY member 3|4 in station A. To enable each thrust member to operate on its bent lever, there is formed in its free end a shoulder 324.which engagesthe bent lever at the bottom of the notch 3|6. Upon completion .of the .downward movement of the valve assembly by the operation of the .bent lever, the end of a screw 326 projecting upwardly from an arm 328 extending forwardly with a downward inclination from the forward portion of the bent lever engages the thrust member and lifts it sufficiently to disengage its shoulder324 from-` the bent lever and during the continued movement of the lever 302, the arm moves freely through the notch in the bent lever into its position in station A as illustrated in Fig. 9 in which position it will not interfere withA theA upward movement of the slide valve assembly by the treadle in the next succeeding cycle of the machine. Y Y' f. t

meanrat `It iswimportant that theflangeformert assemblyreturn toitsflowermost-position beforethelflange for-mers commence their-inward or' retracti'ng movement fini ordertof avoidany displacement: or abrasion of the molded flange -of""the=upper by contact'y of. the 'flange' formersf therewith ldur-ing their retracting movement.-

necessitates a return or downward movementof the-l'arge'piston |42;I (Fig. 3') Abefore the return movementof the pistonv commences In. order to'Al insure.v this result', thevcylinder: |28-isfprovided withaniexhaust line; which opensf i'mmedifately'A upon downward movement of the sleeve valve assemblyf whilethe exhaust line from: the flange former' cylinder |34 isnot open` until the rotary valve f body has'` comipleted. its4 returnimovement; 1'1..eferring.4 toiliig; '111gr the exhaust huid from; thee large cylinder t28 passes. through a pipe 33111 and; througlr a sleeve valve 332 mounted onlsaidfpipe and controlled by a forked arml 334 secured to' the1 rockshat 2=`l-`l which arm carries rolls 336 which operate annular groove 331iA in the valve-332i Downward movement of' the link 266'actuates.tl1e arml to rock the shaft.` 2'1-1' and the armi 334i thereon to move the sleeve=valve 3'3-2intofposition' to open. the

exhaust line from the-large cylinder |228andsaid valve remainslin thisfpositmmuntilthe treadl'e- 268 is actuatedto'rock the shaft 21T to movethesleeve valve 332 into a position in' which it closes said exhaustline In the operation of the machineithe trea'dle268 is depressed, pulling downwardly'on thetw'olinks 21o inthe two 'stat-ionsof the machine, there being but onetreadleforthe twostations. Referring nowy to Fig. 9, the downward movement of the link 210 instation-A imparts rearward movement to the horizontal-linli'214'lwhich operates through mechanism hereinbefore'des'crlbed toset the sleeve valves-for the initiationr offthe power cycle-of the machine; InA station B'Ltl'ie-valves# are still open to pressure-and, consequently; theil'iorizontal link 214 is in its forward position'andthe treadle actuated bell crank lever 21T'23 moves rvidi'y advancing' the cross-pin 342-' in the verticali arm of the bell crank lever from theforward-endl of the slot 34'4-in`the horizontal` link- 2-1`4`ltoither`e'arward end of said slot. Referring' nowy to upon depression of the treadle, thesl'eeve valves 248, 25D; and252 are'moved upwardly into=their surge tank continuing until the piston 911i closes the port 98; Immediately upon; the closing of said port, the sleeve -64 willi haveuncoveredthe port |f00-in the cylinder'8'0ltoadmit pressure fluid from the pipe |90. During the` initial advance'- vment ofthe piston 90 pressuresfluidienters the :cylinder' 238- andA moves` theV motor 2325downwardly to operate the' rotary valve R; thereby-f opening in i sequence the service ports inthe; valve casing communicating.l respectively with the pipesifllf, I 92 and |94I which serve; thethree! cylinders- 80, |34 .and |:28u-in theorder nameds.. Asthemotor za-z moves-downwarmy nui-c1 in theiower cylinder Inasmuch asy the lowerI sleeve -valfve-v .252. is? now positioned to closeA the pipe 244'-, exhaust'ui'd from the cylinder 242 passes' outwardly through the governor valrefGwhich has previouslyf been adi'usted tol control' the speed? ofv downward' movement oflthefmot'or: Thus;l the; speed"4v of" operation of the rotary valve' isdetermined and the operationslof the' machine are properly tiin'ed. Dur-lng the-closing movement of the outer-heel forms'32 instation B, 'the cabl'eg304` swings= the'rl'ever -3'02 ina.c1ockwise `direction-thereby actuatifngthe arm 3M in station A .(vsoelig'.- 9?) toswing the-'bent lever 318 iny a clockwicedirection thereby-@moving the sleeve2 valves; 248,- 25|! andi 252 downwardly intoA their position4r illustrated in Fig. lll, and5v at the sainek time moving the lmrizontal sleevefva'lve 332i forwardly tov open the exhaustline 33`0ff`rom the cylinder |285 thusipermitting thedownward or return movement-of thepiston |f42 together with the `flange former assembly by the heavy spring-`|483 thereby bringing the'- vflange-iori'lfiers out of contact with ythe upper. Inasmuch as the opening ofthe exhaustflines from thefcylintle'ie and' |13`4i awa-its: the operationv off the rotaryevalve itwill: he underst'ood that the flange` former assembly is returned toits. downward positionv with the flangeiformers out of contact; with". the upper before 1 the. outer heel forms 32.` and]` flangeformers 34' are retracted. In itslowermosty positionfthe upperfsl'eeve valve 248 closes the pipe 23 "I extend; ingiupwafrdly from-the manifold! |18 6i and opensithe exhaust outlet 249 in. saidrvalvev tothetpipes'. 285 and; 1236.. 'If'he` middle sleeve valve 2.50; is now iniits open: positionv and consequently pressure. fluid iiows ydownwardly fromthe manifoll through saidvalv'e and through the pipeI 2.18 communicatinggwithv the'. cylinder I 68,.thus actuating the piston: |661 which operates through. the l'ever302.: and cable 304to retract the outer heel forms..32Y upon thea opening of the exhaust line from. the cylinder 801/ The lower slide valve252 is also in its' open position and conducts pressure fluidffr-.om the manifold downwardly through the freepassagefin the governor valve Grand to` thel cylinder 1242, thusfrnoving the motor 232y upwardly andzoperating". the rotary valve in` station Ain. ak clockwise direction to' connect'v the pipes- 9|);- and |282; to? the exhausty outlet 34E in the valve. casing.: In'. certain respects, the. operation ofy the; work engaging'parts onltheupperf differsffrom the op;- era-tio'ni performed bythe machine illustrated-Lin my Patent No. 1,891,259; above referieda-to;A al;- though. in general the. operations: performediby the: two machines are substantially alike..V Referrring. to'Figs. 20* to` 23, the upper is positioned Y heightwise thereof for the molding operation. by

the engagement of itsv bottomy edge with; plates 348l secured by down-turned extensionsrfauntc the flange formers 34, said plates being; adjustiable. on the flanger formersv to. vary. the: width.- of

the outturned margintof theupp'er. Aftergmount'.- ing the. upper on the heel form; 30;. th'evoperator draws forwardly on the upper lto hold it firmly against the inner heel formi andk then dephesses thertrea'dle to start the power operation.v oil the machine. The outer heel formsl 3'2a'advance into theirupper-molding position illustrated, in Fig'.

2.1 before the flange formers 34.. commence' their outward movement. During the latter partY of the closing movement of the outer heelV norms,

their lower edges forcethel lower' portionl ofi the upper inwardly beyond thek workingedge otlthe hangerI formeraI thereby turningl the:L bot'tonifr'rx'arL pressure. This operation of the flange formersbends the outturned margin of the upper upward to some extent but without drawing the upper Vtightly about the bottomedges of` the forms 32,

thus leaving the upper stock between the bottom edges of the forms 32 and the grooved base portion of the inner heel form substantially untensioned and free to be molded by the subsequent heightwise movement of the flange formers into the groove in the base 'of the inner heel form.

Upon completion of the outward and rearward movement of the flange formers they are moved heightwise of the upper into'their position illustrated in Figs. 22 and 23 to perform the flange molding operation. During said molding oper-l ation,the upper materials are forced into the angular groove at the base of the inner heel form to mold a well-defined crease line therein, as illustrated in Fig. 23. As in the machine of my patent above referred to, the flange is bent upwardly or overmolded by the heightwise movement of the ilange formers to an extent substantially commensurate with the normal springback of the upper materials.

Having thus described my invention, what I claim as new and desire to secureby Letters Patent of the United States is:

1. In a machine for shaping shoe uppers, the' combination with inner and outer upper shaping molds, of ilange forming members, and pressure fluid operated means for moving the flange forming members heightwise of the upper, said means being positioned in heightwise alinement with the upper and arranged for movement heightwise of the upper.

2. In a machine' for shaping shoe uppers, the combination with inner and outer upper shaping molds, of ange formers, means for carrying said flange formers, and fluid pressure means for actuating said carrying means to move the flange formers heightwise of the upper, said actuating means being positioned in heightwise alinement with the upper and arranged for movement heightwise of the upper.

3. In a machine for shaping end portions of shoe uppers, the combination with inner and outer upper shaping molds, of flange formers, a carrier for said ilange formers, a piston on which said carrier is mounted, and a cylinder in which said piston is mounted for movement heightwise of the upper.

4. In a machine for shaping end portions of shoe uppers, the combination with inner and outer upper-shaping molds, of flange formers operable to form an outturned flange in the upper, a carrier for said ilange formers, means forimparting outward flange forming movementA to said flange formers, a piston on which said carrier is mounted, and a cylinder in which said piston is mounted for movement heightwise of the upper.

5. In a machine for shaping shoe uppers, the combination with upper-shaping molds and flange forming means, of a carrier for said flange forming-means; a piston on which said carrier is mounted, yielding means for exerting a light pressure on said carrier heightwise of the upper, and pressure fluid means for actuating said piston to apply heavy pressure to said carrier heightwise of the upper.

6. In a machine for shaping shoe uppers, the combination with inner and outer upper-shaping molds,'of flange formers for forming an outturned flange in the upper, aV carrier for said flange formers, and a, piston movable heightwise of the upper to cause the flange forme'rs to form the outwardly flanged portion of the upper against said outer molds.

7. In a machine for shaping shoe uppers, the combination with inner and outer upper-shaping molds, of ilange formers, a piston for moving said ilange iormers lengthwise of the upper, a second piston for moving said ilange formers heightwise of the upper, and a cylinder in which said second piston is mounted for movement heightwise of the upper.

8. In a machine for shaping shoe uppers, the combination with upper-shaping molds, of flangeforming means, a piston for imparting to said ilange-forming means movement heightwise of the upper, a relatively light spring for exerting a light pressure on said flange-forming means, fluid pressure means for actuating said piston to apply heavy pressure to said flange-forming means, and a relatively heavy spring for effecting a quick retraction of said piston.

9. a machine for shaping shoe uppers, the combination with upper-shaping molds, of flangeforming members, a piston for moving said flangeforming members lengthwise of the upper, and a second piston for moving said flange-forming members heightwise of the upper.

10. In a machine for shaping shoe uppers, the combination with upper-shaping molds, of flangeforming members, a piston for moving said flange- -forming members lengthwise of the upper, a second piston for moving said llan'ge-forming members heightwise of the upper, and a source of pressure iluid for actuating said pistons.

11. In a machine for shaping shoe uppers, a pair of upper-shaping molds constructed and arranged to act on the outersurface of the upper, flange-forming members, pressure fluid actuated means for actuating said molds, and pressure iluid actuated means operable in the direction of the height of the upper to actuate said ilange-iorming members.

12. In a machine for-shaping shoe uppers, a pair of upper-shaping molds constructed and arranged to engage the outer surface of the upper, flange-forming members, a pressure fluid actuated piston for closing said molds on the upper, a second fluid pressure actuated piston for moving said flange-forming-members heightwise of the upper, and a cylinder in which said second piston is mounted for reciprocating movement height- Wise of the upper.

13. In a'machine for shaping shoe uppers, a

pair ofupper-shaping molds constructed and arranged to engage the outer surface of the upper, ilange-forming members, a pressure fluid actuated piston for closing said molds on the upper, a second fluid pressure actuated piston for moving said flange-forming members heightwise of the upper, and a cylinder in which said second piston is mounted for reciprocating movement heightwise ofthe upper in a path positioned in alinement with the upper heightwise thereof.

14;,In a kmachine for 'shaping shoe uppers, a pair of upper-shaping'molds constructed and arthe upper, a cylinder in which said second piston f pair of upper-shaping molds constructed and is mounted for'reciprocating movementheight- Wise of the upper, and a third pressure fluid-actuated piston for retracting said upper-shaping molds. i

15. AIna-machine for shaping shoe uppers, a

pair of upper-shaping molds constructedv and ar; ranged to actV against the outer surface of the. upper, flangeeforming members, pressure fluid-` actuated means for closing said molds on the upper, a second pressure fluid-actuatingfmeans 16. Inv a' machine for shaping shoe uppers, a v

pair of `upper-shaping molds constructedand arranged to act against the outer surface of the upper, flange-forming members, pressure fluid actuated means for closing said molds on the upper, a second `pressure fluid actuating means for retr'actingI said molds, a third pressure fluid actuated means for moving said flange-forming members lengthwise ofthe upper, and a fourth pressure fluid actuated means for moving said flangeforming members heightwise of the upper after they have completed their lengthwise movement;

I 17. In a machine for shaping shoe uppers, a pair of upper-shaping molds constructed and arranged to act on the outer surface ofthe upper,

pressure fluid operated means for actuating said A molds, connections from said means t opposite side portions of said molds, and yielding means for holding the molds open. l

18. In a machine for shaping shoe uppers, a pair of upper-shaping molds constructed and arranged to act on the outer surface of the upper, pressure fluid actuated means for advancing and closing said molds,and yielding means interposed between the pressure fluid-actuated means and the molds for holding the molds in their .open position until they meet the resistance of the Work. l l

19. In a machine for shaping shoe uppers, a pair of upper-shaping molds constructed and arrangedl to act on .the outer surface of the upper, pressure fluid actuated means for. advancing and closing said molds, yielding means interposed arranged to action the outer surface of the upper, pressure fluid actuated means for advancing the molds in their open positions, a second pressure' fluid actuated means for closing the molds on the upper, anda cylinder in which both of said pressure fluid-actuated means are concentrically mounted. l

23.- In ay machine Yfor shaping shoe uppers, a pair of upper-shaping molds`constructed and arranged toengage'the outer surface of the upper,

ahollowf. piston for closing said molds onvthe i upper, a second Apiston'operable within said hollow pistonfor advancing said molds in their. open position, and yielding means interposed loe-.-

tween said molds and the hollow piston for holding the molds in their open position until theyy meet the resistance of the work.

24. In a machine for shaping shoe uppers, a pair of yupper--shaping molds constructed and arranged to act on the outer surface of the upper, pressure fluid actuated means for advancing. the molds under relatively light pressure to bring them into proximity to the work, pressure fluid actuated means for thereafter advancing the molds under .relatively heavy pressure, and pressure fluid actuated means for closing the molds on the work.

- 25. In a machine for shaping shoe uppers, a pair of upper-shaping molds constructed and arranged toact on the outer surface ofthe upper, a source of pressure fluid, a member for advance ing said molds having a relatively small pressure fluid area, a second mem-berfor advancing said molds having a relatively large fluid pressure area, and a third pressure fluid actuated member for closing said moldson vthe upper.

26. In a machine for forming an outturned flange in -a shoe upper, the combination with` upper-embracing molds and flange formers for bending the bottom margin'of a shoe upper outwardly about said molds, of an inner form provided with a vrecess so constructed as to form a crease line inthe upper at lthe root of said outbetween the pressure fluid actuated `means and `pair of upper-shaping molds constructed' and arranged to act on the outer surface of the upper, pressure fluid actuated means for advancing the .molds in theiropen positions, and a second pressure fluid actuated means for closing vthe molds on thev upper, said second pressureffluid actuated means being rendered operative to' close the molds by the resistance of the work to further advance'- mentiof the molds in their open position.

, an inner form on which the end portion of theA upper is supported for the operation of said molds,

lturned flangel upon the application of pressure to said outturned flange, .and means for moving said flange,` formers heightwise of the upperlto. l apply pressure tosaid flange.

27. In a machine for forming an outturned flange in a shoe upper, the combination with upper-embracing ,molds and flange formers for bending the bottom margin of a shoe upper outwardly about said molds, of an inner form which supports .the upper for the operation of said molds and is provided with an angular recess adjacent tothe bend line of said outturned flange, and means for forcibly moving said ange formers heightwise of the upper to mold the stock in thel region of the bend'line into the angular recess of said inner form. A,

28. In a machine for forming an outturned flange in an-end portion of a shoe upper, the combination with ,end-embracing moldsy and flange formers operable to bend the bottom margin of the upper outwardly about said molds, lof

said formhaving an angular recess extending about its work engaging surface along a line adjacent tothe bend line of said outturned flange, means Vfor moving said flange formers outwardly while maintaining a relatively light pressure thereon heightwise of the upper, and means operating' on said flange formers after the vcomple- 22.l -In a machlne'for'shaping vshoe uppers, ia v75 tion of Atheir outward movement to applyvheavy pressure tothe. upper. .heightwis'ef-thereof :in the regionof said bend line :thereby -to mold the upper materials inthe region of the bendlineWithin` the angular recess provided inthe innerform.-

29. In a .machinefor forming an .outturned A flange in anend portionof a-shoe lippen-an inner .formen .which the upperis supported; molds for shaping the upper against said inner form,

and outvvardlymovable. flange formers so. constructedand .arranged that :in theirA retracted position they occupy asspace Wider than the base portion of the inner form and'thus provide abutmentssagainst which said molds turnthe bottom margin.. of the .upper outwardly to initiate the flange .forming operation.

30.; Inra machinefor .shaping vslice uppers; a pair :of end-.embracing.forms,a carrier on. which said forms are removably mounted,.and means for .closing saidforms, saidmeans including ccnnections which are readily-detachable to permit l mit the removal of. said :formsfroml the carrier.

33.11A tWo-stationmachine having, ineachstation, apressure fluid .actuated 4piston; aseccnd pressure fluid actuated: piston, a. trainrof mechanical 'connections from said second .pressure fluid actuated i piston Lor r retrating said .,rstmentioned piston, said .connections including )a lever.: a` valve'controlling. the .operation :of said second piston, and mechanical connectionsfrom said' flever in: each station :actuated by ya move-f ment: of .said lever .effected .by 1 the advancement of said inst-mentioned:pistonf'for -operatingithe valve-inthe'otherfstationg` 34.1 A 'two-station machine :havingfin eachstaf.. tion, an operating means;` pressure iiuidJactuated means` for advancing said: operating i I meansy.. a. pressure iiuidactuated .member r for retracting 1 saidfoperating means.. a valve:forcontnollingthe application of pressure fluidV to vsaid Lmember; mechanical-connections from the operating means, for retracting -the pressure uid actuated member inthe same-station, said connections. including a lever, andfmechanical connections from.k said lever for operating the valve'dn the-opposite station.- i

35. Atwo-station machine -having,=in each sta'` tion, an operatinginstrumentality, pressure-duid actuated means for advancing saidcperating `instrumentality, a Vpressure fluid actuated member for retractingsaidf' operating f instrumentality, a. Valve iorfcontrolling the application-ofpressure fluid to` said member, mechanical connections. irom'vsaid member tossaid instrumentality,V in'- cluding alever having an extension and connections from said .extensiomforoperatng the valvef. in theol other station.. A l

36.; A two-stationimachine havingpin each..sta. tion;l an` operating'. instrumentality, pressure g uidactuated means ioradvancing saidznperate instrurnentality.,y a pressure fluid ractuated member ifor retracting said;operating;instrumem` tality,f afvalve for lcontrollingfzfthe 'application roi. pressure afluid Lto said.' member; mechanical:-.coml nections r from .saidfrmemben r'tot saidifnstrumene 'tality including a -nlever z' hauingf anf extension; connections from said extensionI for. .operatinglthe valve'l inithe other station, `and manually operablef means for resetting. said i valve forfthe.advance.A ment of said operating instrumentality.

37;,In a machineaior. shapin'gafshoeuppers,` a pair .of upper-shapingmolds .constructedand arranged tdengage the outer:.surfacelof.` the upperr a pressure uid actuatedpistonrforactuating 4said molds, va, pair'of ange formers, apressure iluidI actuated piston :for operatingfsaidfflange forma ers, a;pressure fluid actuated piston` for .relative-1y ly moving, the molds'andthe-formersitormoldfthe flange. a selector -valve 'for determining :theme-- quence of operation 'or said -pistons,;a. pressure fluid actuated. motor fors operating said z selecton valve, and: a valve :for determiningthespeedi of.v operative movement of said motor.

38. Inra -machine .fon shaping .'shoe-.uppers; a pair Vof upper-shaping finolds constructedi and :are ranged .to engage. the :outer surfacev ofthe upper,y apressure 'duid i actuated: piston @fors-:actuating said molds, aupainofsflange formers; a pressure uid. actuated. pistonfor. foperating 'said tange formers, a pressure luid.actuated:.piston formel-1 atively moving the zmolds,y andzLthe-.formersfto mold'theflangaa .valve for determiningftheisequence of; operation of. said '.pistons comprisingJ casing having outlet ports ,which communicate. with 'said pistons.. airota'ryzvalve tbody amounted in a `bore in saidfcasing; the peripheral-surfacefoi said valve body being .provided-'.With'a plurality of pressure iuid passages which; are brought into communication Withzsaid outlet ports ,bynactuw tion ofnsaidtvalve body,l Iarpressure'fiuid actuated motory for actuating said `Valvebody, f amotor cyl. inder, anda valve forcrestrictingfthe/110W ofsex.-

haust. fluid from' said motor cylinder therebyvtodetermine the speed -ofr foperativezmovement .of said motor.

39x A two-.station-.machine havingrin: each stas. tion a pressure fluid actuated motor and a valve for. :controlling application. of pressure fluid Lto' said motorgairtreadlecommon to both-stations'. operatingonnections from said1treadle to the valveineach statiom arsecond valve in.each'sta. tiony .for controlling` applicationr of. pressure uid for reverselyoperating the respective motors-and automaticmeans in each station for operating the secondvalvefin the -zopposi-te station.

40.y Ina power-operated shoe machine,` a form constructed and arranged-.to-operate on the. outer surface of a shoe-upper. avpressure fluidactuated member foradvancingr said form, and a -cylin.. der inwhicnsaid member-operates, said cylinder being. characterized by la drainage fgrooveopen. to the interiorl of thecylinder.

41.V 1nI a. power-operated.- shoemachine, aform. constructed and arranged to operate on-the outer surface of a.shoetupperr;d pressure fluid actuated member-for advancingfsaid form,-.and a cylinder in which .said .member1 operates, ,said cylinderv being-characterized byfa drainage groove.: one, wallsof. which is .constructedandrarranged' to wipe.free.auid 'from' said .member duringV relative movement :of the Ymember and the cylinder.

42. in combinationgxa -pistonrod a .small-pis ton head lon saidfrod,4 a relatively. large i piston head on .said rod, Ia fsmallcylindenin which said small.. piston.- head .'mounted.. ya .sleeve '.-in which 

